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KmXtend Hair Extensions

Genius Weft Hair Extenions

Genius Weft Hair Extenions

Regular price $229.00
Regular price Sale price $229.00
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Shipping calculated at checkout.

Genius weft hair extensions combine the benefits of both hand-tied and machine weft, which means their flawless formation contains the good qualities of both types of wefts without their unfavored features. Look at the genius weft hair extension features below, which are also the reasons why stylists prefer it.

Hand-tied extensions are made by hand, so they have flatter seams, but they are less durable and less bulky, which means they contain less hair. Women prefer it because its installation does not cause unevenness or bumps on the head.

Machine wefts are made with machines, so it is more durable and contain more hair but has a thicker seam that feels unnatural when wefts are stacked. Women prefer it if their focus is getting long-lasting wefts.


Hand tied wefts are about .76mm thick and 1.16mm tall. the genius wefts are about .78mm thick and 1.71 mm tall.  The genius wefts are still very thin. 

Genius Weft Hair Extenions - KmX Wefts

Each one of the genius wefts is 50 grams of hair.

Lengths 24-28" are 60 grams each weft


At KmXtend Hair, we empower women to feel confident and beautiful with premium-quality hair extensions for all budgets. Serving salons, top stylists, and a thriving community, our passion goes beyond hair, as we help women express their individuality and creativity. Trendy, innovative, and affordable, KmXtend is reinventing a wholly modern approach to the hair market. We bring together salon-quality and client-tested hair extensions, with the aim to set the mark for a new industry standard. With a firm belief in all our products, we’re the place to unlock the power of imagination through luscious locks of hair.



Genius Weft Hair Extensions

Our Promise


As a top hair extension brand, our extensions are made from 100% ethically sourced human remy hair and use only the utmost highest quality material for a luxurious experience. We promise that nothing but quality workmanship goes into every last product, which is something any consumer or salon owner can be glad to hear.

Our hair  retains the full cuticle intract and never use an acid bath during the manufacturing process. Our hair will maintain it’s smoothness and shine even after several washes as our hair is never coated in silicone. All our hair is ethically sourced and single donor.


Besides our commitment to top quality products, we proudly offer something for everyone at a reasonable price point. Weather you’re celebrating a special day or helping a client update her daily look, we’re dedicated to ensuring the highest quality standards and developing longlasting extensions that bring a touch of luxury and glam. It is with so much gratitude that we get to be part of your hair story and we don’t take it for granted!


When Will My Order Arrive?

 Please allow 1 week for delivery for in stock orders or email to see if a rush order is possible.   



When Will My Order Ship

Please allow 3 business days for orders to ship.
Once order is placed, you'll receive a processing email on what date we expect your order to ship. Then we will ship either USPS priority or express or overnight shipping as selected.
** Shipping estimates assume no shipping delays **
Route shipping insurance is added onto your order automatically but can be opted out. This is highly recommended in the event there are lost or stolen packages. KmXtend is not responsive for lost or stolen packages.
If there will be any expected delays we will send an email or SMS before hand. Please sign up for email or text alerts.

How Many Grams of Hair Do I Need?

For lengths 16-18" extensions you'll need 50 -75 Grams of hair if your only looking for fuller hair or adding highlights or lowlights. If you're looking to add length, 100-150 Grams should be good for a full head depending on how thick your hair is. If you have thin, fine hair, 100 grams should suffice.  


20"-22". Again 50-75 Grams should be good to thicken hair  or add that pop of color for hair that is already this length. 120-180 Grams is usually good for this length for a full head, depending on the length and thickness of your own hair.


24-26".  If you're buying hair this long, chances are you are buying for length. Usually 160 - 240 Grams of hair is good for this length. for a full head.   

Hair 28" and longer should be 200-300 Grams of Hair. Anything less will be hard to blend and you want to make sure you have thickness through the ends of your hair. No one likes thin, straggly ends. 

Need a Color Match?

Not seeing what you need or need a color match? Email or live chat
Length Chart

9 total reviews

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Customer Reviews

Based on 9 reviews
Kimberley McKeehan Garland
Love K M Extend

My second time purchasing KM Extend Genius Weft! Absolutely love them! I have tried lots brands and KM Extend is my favorite’

Kierstin Williams
22” genius weft

I have 22” Genius wefts x3 in the color #2.

I LOVE my new hair! It’s fresh, thick, and so soft! The quality is amazing, and I’m so excited to see how they hold up for me!

Jamie Lansink
Great hair

Quick shipping great quality


I loved this hair!


Best extension I’ve found